You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
CompactionArea: what it touches
ImprovementsKind: in v2.1.280,
ImprovementsSection of the release
What
The record produced after a context compaction (which summarizes older conversation history to save space) now includes a usage field, populated from the compaction result's compactionUsage (the total usage available), in addition to the existing tokensBefore/tokensAfter fields. This field is added conditionally, only when the underlying usage data is available.
Why
This gives more detailed token-usage information alongside each compaction event, useful for understanding the cost and effect of compaction rather than just seeing token counts before and after.
